Reken de erafsom tot 100 uit

Erafsommen
1.
55
–
15
=
2.
40
–
15
=
3.
5
–
0
=
4.
35
–
20
=
5.
5
–
0
=
6.
35
–
15
=
7.
60
–
60
=
8.
15
–
0
=
9.
30
–
5
=
10.
70
–
60
=
11.
20
–
15
=
12.
45
–
45
=
13.
45
–
45
=
14.
5
–
5
=
15.
15
–
0
=
16.
45
–
35
=
17.
20
–
10
=
18.
40
–
25
=
19.
15
–
0
=
20.
25
–
5
=
21.
15
–
5
=
22.
65
–
10
=
23.
75
–
0
=
24.
85
–
15
=
25.
55
–
55
=
26.
30
–
20
=
27.
65
–
35
=
28.
5
–
5
=
29.
30
–
10
=
30.
80
–
10
=
31.
45
–
30
=
32.
90
–
75
=
33.
55
–
25
=
34.
85
–
50
=
35.
10
–
10
=
36.
95
–
25
=
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Reken de erafsom tot 100 uit
| ANTWOORDEN

Erafsommen
1.
55
–
15
=
40
2.
40
–
15
=
25
3.
5
–
0
=
5
4.
35
–
20
=
15
5.
5
–
0
=
5
6.
35
–
15
=
20
7.
60
–
60
=
0
8.
15
–
0
=
15
9.
30
–
5
=
25
10.
70
–
60
=
10
11.
20
–
15
=
5
12.
45
–
45
=
0
13.
45
–
45
=
0
14.
5
–
5
=
0
15.
15
–
0
=
15
16.
45
–
35
=
10
17.
20
–
10
=
10
18.
40
–
25
=
15
19.
15
–
0
=
15
20.
25
–
5
=
20
21.
15
–
5
=
10
22.
65
–
10
=
55
23.
75
–
0
=
75
24.
85
–
15
=
70
25.
55
–
55
=
0
26.
30
–
20
=
10
27.
65
–
35
=
30
28.
5
–
5
=
0
29.
30
–
10
=
20
30.
80
–
10
=
70
31.
45
–
30
=
15
32.
90
–
75
=
15
33.
55
–
25
=
30
34.
85
–
50
=
35
35.
10
–
10
=
0
36.
95
–
25
=
70
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen